/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0c0c10;
  --surface: #141418;
  --surface-2: #1c1c22;
  --fg: #f0f0f5;
  --fg-muted: #8b8b99;
  --fg-subtle: #55555f;
  --accent: #6366f1;
  --accent-dim: rgba(99, 102, 241, 0.15);
  --border: rgba(255,255,255,0.07);

  --font-display: 'Syne', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
  --font-body: 'IBM Plex Sans', sans-serif;

  --max-w: 1100px;
  --pad-x: clamp(24px, 5vw, 60px);
  --section-gap: clamp(80px, 10vw, 140px);
}

html { font-size: 16px; scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* --- Navigation --- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 20px var(--pad-x);
  border-bottom: 1px solid var(--border);
  background: rgba(12,12,16,0.85);
  backdrop-filter: blur(12px);
}

.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  align-items: baseline;
  gap: 16px;
}

.nav-logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  color: var(--fg);
}

.nav-tagline {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--fg-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* --- Section Utilities --- */
.section-heading {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--fg);
  margin-bottom: 56px;
}

/* --- Hero --- */
.hero {
  padding: var(--section-gap) var(--pad-x);
  max-width: var(--max-w);
  margin: 0 auto;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(40px, 6vw, 80px);
  align-items: center;
}

.hero-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 24px;
}

.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 5vw, 4.2rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--fg);
  margin-bottom: 28px;
}

.hero-sub {
  font-size: clamp(1rem, 1.5vw, 1.15rem);
  color: var(--fg-muted);
  line-height: 1.65;
  max-width: 420px;
}

/* Stats column */
.hero-right {
  border-left: 1px solid var(--border);
  padding-left: clamp(32px, 5vw, 60px);
}

.hero-stat-block {
  padding: 24px 0;
}

.stat-number {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 4vw, 3.4rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--fg);
  line-height: 1;
}

.stat-unit {
  font-size: 0.45em;
  color: var(--accent);
  letter-spacing: 0;
  margin-left: 2px;
}

.stat-desc {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--fg-subtle);
  margin-top: 8px;
  line-height: 1.5;
}

.hero-divider {
  height: 1px;
  background: var(--border);
}

/* --- Manifesto --- */
.manifesto {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.manifesto-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: clamp(60px, 8vw, 100px) var(--pad-x);
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.manifesto-text {
  font-size: clamp(1.1rem, 1.8vw, 1.35rem);
  color: var(--fg-muted);
  line-height: 1.7;
  max-width: 680px;
}

.manifesto-text--strong {
  color: var(--fg);
  font-weight: 500;
}

.manifesto-text--light {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--fg-subtle);
  padding-top: 8px;
  border-top: 1px solid var(--border);
  max-width: 400px;
}

/* --- Features --- */
.features {
  padding: var(--section-gap) var(--pad-x);
  max-width: var(--max-w);
  margin: 0 auto;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}

.feature-item {
  background: var(--bg);
  padding: 36px 32px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.feature-mono-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--accent);
  letter-spacing: 0.06em;
}

.feature-title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--fg);
  letter-spacing: -0.01em;
}

.feature-body {
  font-size: 0.9rem;
  color: var(--fg-muted);
  line-height: 1.65;
}

/* --- Process --- */
.process {
  padding: var(--section-gap) var(--pad-x);
  max-width: var(--max-w);
  margin: 0 auto;
}

.process-timeline {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  align-items: start;
  gap: 0;
}

.process-step {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.process-step-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--accent);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--accent-dim);
  margin-bottom: 4px;
}

.process-step-title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--fg);
  letter-spacing: -0.01em;
  line-height: 1.3;
}

.process-step-desc {
  font-size: 0.85rem;
  color: var(--fg-muted);
  line-height: 1.6;
}

.process-connector {
  width: 40px;
  height: 1px;
  background: var(--border);
  margin-top: 28px;
  flex-shrink: 0;
}

/* --- Closing --- */
.closing {
  background: var(--surface);
  border-top: 1px solid var(--border);
}

.closing-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: clamp(60px, 8vw, 100px) var(--pad-x);
}

.closing-text {
  font-size: clamp(1.1rem, 1.8vw, 1.3rem);
  color: var(--fg-muted);
  line-height: 1.7;
  max-width: 640px;
  margin-bottom: 40px;
}

.closing-statement {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-weight: 700;
  color: var(--fg);
  line-height: 1.3;
  letter-spacing: -0.02em;
  max-width: 560px;
}

/* --- Footer --- */
.footer {
  border-top: 1px solid var(--border);
}

.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 32px var(--pad-x);
  display: flex;
  align-items: baseline;
  gap: 24px;
}

.footer-logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
  color: var(--fg);
}

.footer-note {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--fg-subtle);
}

/* --- Responsive --- */
@media (max-width: 768px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-right { border-left: none; padding-left: 0; border-top: 1px solid var(--border); padding-top: 40px; }
  .hero-stat-block { padding: 16px 0; }
  .features-grid { grid-template-columns: 1fr; }
  .process-timeline { grid-template-columns: 1fr; gap: 24px; }
  .process-connector { display: none; }
  .manifesto-inner { gap: 20px; }
}

@media (max-width: 480px) {
  .hero-headline { font-size: 2.4rem; }
  .section-heading { margin-bottom: 32px; }
}